preganglionic fibers
Definition: a fiber the cell body of which is located in an autonomic nucleus in the spinal cord or brainstem and the axon of which terminates in an autonomic (motor) ganglion; found in nerves conveying sympathetic or parasympathetic fibers.
Synonym(s): neurofibrae preganglionicae
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Examples: glitazone, GI cocktail, etc.

